drm/amd/pp: Add auto power profilng switch based on workloads (v2)

Add power profiling mode dynamic switch based on the workloads.
Currently, support Cumpute, VR, Video, 3D,power saving with Cumpute
have highest prority, power saving have lowest prority.

in manual dpm mode, driver will stop auto switch, just save the client's
requests. user can set power profiling mode through sysfs.

when exit manual dpm mode, driver will response the client's requests.
switch based on the client's prority.

v2: squash in fixes from Rex
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h

@@ -341,9 +341,9 @@ enum amdgpu_pcie_gen {
 		((adev)->powerplay.pp_funcs->reset_power_profile_state(\
 			(adev)->powerplay.pp_handle, request))
 
-#define amdgpu_dpm_switch_power_profile(adev, type) \
+#define amdgpu_dpm_switch_power_profile(adev, type, en) \
 		((adev)->powerplay.pp_funcs->switch_power_profile(\
-			(adev)->powerplay.pp_handle, type))
+			(adev)->powerplay.pp_handle, type, en))
 
 #define amdgpu_dpm_set_clockgating_by_smu(adev, msg_id) \
 		((adev)->powerplay.pp_funcs->set_clockgating_by_smu(\

drivers/gpu/drm/amd/include/kgd_pp_interface.h

@@ -83,20 +83,6 @@ enum amd_vce_level {
 	AMD_VCE_LEVEL_DC_GP_HIGH = 5, /* DC, general purpose queue, 1080 >= res > 720 */
 };
 
-enum amd_pp_profile_type {
-	AMD_PP_GFX_PROFILE,
-	AMD_PP_COMPUTE_PROFILE,
-};
-
-struct amd_pp_profile {
-	enum amd_pp_profile_type type;
-	uint32_t min_sclk;
-	uint32_t min_mclk;
-	uint16_t activity_threshold;
-	uint8_t up_hyst;
-	uint8_t down_hyst;
-};
-
 enum amd_fan_ctrl_mode {
 	AMD_FAN_CTRL_NONE = 0,
 	AMD_FAN_CTRL_MANUAL = 1,
@@ -143,7 +129,6 @@ enum PP_SMC_POWER_PROFILE {
 	PP_SMC_POWER_PROFILE_VR           = 0x3,
 	PP_SMC_POWER_PROFILE_COMPUTE      = 0x4,
 	PP_SMC_POWER_PROFILE_CUSTOM       = 0x5,
-	PP_SMC_POWER_PROFILE_AUTO         = 0x6,
 };
 
 enum {
@@ -252,8 +237,7 @@ struct amd_pm_funcs {
 	int (*get_pp_table)(void *handle, char **table);
 	int (*set_pp_table)(void *handle, const char *buf, size_t size);
 	void (*debugfs_print_current_performance_level)(void *handle, struct seq_file *m);
-	int (*switch_power_profile)(void *handle,
-			enum amd_pp_profile_type type);
+	int (*switch_power_profile)(void *handle, enum PP_SMC_POWER_PROFILE type, bool en);
 /* export to amdgpu */
 	void (*powergate_uvd)(void *handle, bool gate);
 	void (*powergate_vce)(void *handle, bool gate);

drivers/gpu/drm/amd/powerplay/amd_powerplay.c

@@ -1077,22 +1077,44 @@ static int pp_odn_edit_dpm_table(void *handle, uint32_t type, long *input, uint3
 }
 
 static int pp_dpm_switch_power_profile(void *handle,
-		enum amd_pp_profile_type type)
+		enum PP_SMC_POWER_PROFILE type, bool en)
 {
 	struct pp_hwmgr *hwmgr;
-	struct amd_pp_profile request = {0};
 	struct pp_instance *pp_handle = (struct pp_instance *)handle;
+	long workload;
+	uint32_t index;
 
 	if (pp_check(pp_handle))
 		return -EINVAL;
 
 	hwmgr = pp_handle->hwmgr;
 
-	if (hwmgr->current_power_profile != type) {
-		request.type = type;
-		pp_dpm_set_power_profile_state(handle, &request);
+	if (hwmgr->hwmgr_func->set_power_profile_mode == NULL) {
+		pr_info("%s was not implemented.\n", __func__);
+		return -EINVAL;
+	}
+
+	if (!(type < PP_SMC_POWER_PROFILE_CUSTOM))
+		return -EINVAL;
+
+	mutex_lock(&pp_handle->pp_lock);
+
+	if (!en) {
+		hwmgr->workload_mask &= ~(1 << hwmgr->workload_prority[type]);
+		index = fls(hwmgr->workload_mask);
+		index = index > 0 && index <= Workload_Policy_Max ? index - 1 : 0;
+		workload = hwmgr->workload_setting[index];
+	} else {
+		hwmgr->workload_mask |= (1 << hwmgr->workload_prority[type]);
+		index = fls(hwmgr->workload_mask);
+		index = index <= Workload_Policy_Max ? index - 1 : 0;
+		workload = hwmgr->workload_setting[index];
 	}
 
+	if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL)
+		hwmgr->hwmgr_func->set_power_profile_mode(hwmgr, &workload, 0);
+	mutex_unlock(&pp_handle->pp_lock);
+
 	return 0;
 }
 

drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c

@@ -125,6 +125,21 @@ static const struct cgs_irq_src_funcs thermal_irq_src[3] = {
 	{ .handler = phm_ctf_irq }
 };
 
+static void hwmgr_init_workload_prority(struct pp_hwmgr *hwmgr)
+{
+	hwmgr->workload_prority[PP_SMC_POWER_PROFILE_FULLSCREEN3D] = 2;
+	hwmgr->workload_prority[PP_SMC_POWER_PROFILE_POWERSAVING] = 0;
+	hwmgr->workload_prority[PP_SMC_POWER_PROFILE_VIDEO] = 1;
+	hwmgr->workload_prority[PP_SMC_POWER_PROFILE_VR] = 3;
+	hwmgr->workload_prority[PP_SMC_POWER_PROFILE_COMPUTE] = 4;
+
+	hwmgr->workload_setting[0] = PP_SMC_POWER_PROFILE_POWERSAVING;
+	hwmgr->workload_setting[1] = PP_SMC_POWER_PROFILE_VIDEO;
+	hwmgr->workload_setting[2] = PP_SMC_POWER_PROFILE_FULLSCREEN3D;
+	hwmgr->workload_setting[3] = PP_SMC_POWER_PROFILE_VR;
+	hwmgr->workload_setting[4] = PP_SMC_POWER_PROFILE_COMPUTE;
+}
+
 int hwmgr_early_init(struct pp_instance *handle)
 {
 	struct pp_hwmgr *hwmgr;
@@ -151,6 +166,7 @@ int hwmgr_early_init(struct pp_instance *handle)
 	hwmgr_set_user_specify_caps(hwmgr);
 	hwmgr->fan_ctrl_is_in_default_mode = true;
 	hwmgr->reload_fw = 1;
+	hwmgr_init_workload_prority(hwmgr);
 
 	switch (hwmgr->chip_family) {
 	case AMDGPU_FAMILY_CI:

drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c

@@ -220,6 +220,8 @@ int psm_adjust_power_state_dynamic(struct pp_hwmgr *hwmgr, bool skip,
 	struct pp_power_state *pcurrent;
 	struct pp_power_state *requested;
 	bool equal;
+	uint32_t index;
+	long workload;
 
 	if (skip)
 		return 0;
@@ -247,6 +249,15 @@ int psm_adjust_power_state_dynamic(struct pp_hwmgr *hwmgr, bool skip,
 	if (!phm_force_dpm_levels(hwmgr, hwmgr->request_dpm_level))
 		hwmgr->dpm_level = hwmgr->request_dpm_level;
 
+	if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL) {
+		index = fls(hwmgr->workload_mask);
+		index = index > 0 && index <= Workload_Policy_Max ? index - 1 : 0;
+		workload = hwmgr->workload_setting[index];
+
+		if (hwmgr->power_profile_mode != workload && hwmgr->hwmgr_func->set_power_profile_mode)
+			hwmgr->hwmgr_func->set_power_profile_mode(hwmgr, &workload, 0);
+	}
+
 	return 0;
 }
 

drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c

@@ -1510,6 +1510,9 @@ static void smu7_init_dpm_defaults(struct pp_hwmgr *hwmgr)
 	data->current_profile_setting.mclk_up_hyst = 0;
 	data->current_profile_setting.mclk_down_hyst = 100;
 	data->current_profile_setting.mclk_activity = SMU7_MCLK_TARGETACTIVITY_DFLT;
+	hwmgr->workload_mask = 1 << hwmgr->workload_prority[PP_SMC_POWER_PROFILE_FULLSCREEN3D];
+	hwmgr->power_profile_mode = PP_SMC_POWER_PROFILE_FULLSCREEN3D;
+	hwmgr->default_power_profile_mode = PP_SMC_POWER_PROFILE_FULLSCREEN3D;
 
 	if (hwmgr->chip_id == CHIP_POLARIS12 || hwmgr->is_kicker) {
 		uint8_t tmp1, tmp2;
@@ -2466,9 +2469,6 @@ static int smu7_hwmgr_backend_init(struct pp_hwmgr *hwmgr)
 	smu7_patch_voltage_workaround(hwmgr);
 	smu7_init_dpm_defaults(hwmgr);
 
-	hwmgr->power_profile_mode = PP_SMC_POWER_PROFILE_FULLSCREEN3D;
-	hwmgr->default_power_profile_mode = PP_SMC_POWER_PROFILE_FULLSCREEN3D;
-
 	/* Get leakage voltage based on leakage ID. */
 	if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
 			PHM_PlatformCaps_EVV)) {

drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c

@@ -766,13 +766,12 @@ static int vega10_hwmgr_backend_init(struct pp_hwmgr *hwmgr)
 
 	hwmgr->backend = data;
 
+	hwmgr->workload_mask = 1 << hwmgr->workload_prority[PP_SMC_POWER_PROFILE_VIDEO];
 	hwmgr->power_profile_mode = PP_SMC_POWER_PROFILE_VIDEO;
 	hwmgr->default_power_profile_mode = PP_SMC_POWER_PROFILE_VIDEO;
 
 	vega10_set_default_registry_data(hwmgr);
-
 	data->disable_dpm_mask = 0xff;
-	data->workload_mask = 0xff;
 
 	/* need to set voltage control types before EVV patching */
 	data->vddc_control = VEGA10_VOLTAGE_CONTROL_NONE;
@@ -4187,11 +4186,6 @@ static int vega10_dpm_force_dpm_level(struct pp_hwmgr *hwmgr,
 		break;
 	case AMD_DPM_FORCED_LEVEL_AUTO:
 		ret = vega10_unforce_dpm_levels(hwmgr);
-		if (hwmgr->default_power_profile_mode != hwmgr->power_profile_mode) {
-				smum_send_msg_to_smc_with_parameter(hwmgr, PPSMC_MSG_SetWorkloadMask,
-						1 << hwmgr->default_power_profile_mode);
-				hwmgr->power_profile_mode = hwmgr->default_power_profile_mode;
-		}
 		break;
 	case AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD:
 	case AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK:

drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.h

@@ -374,9 +374,6 @@ struct vega10_hwmgr {
 	/* ---- Overdrive next setting ---- */
 	uint32_t                       apply_overdrive_next_settings_mask;
 
-	/* ---- Workload Mask ---- */
-	uint32_t                       workload_mask;
-
 	/* ---- SMU9 ---- */
 	struct smu_features            smu_features[GNLD_FEATURES_MAX];
 	struct vega10_smc_state_table  smc_state_table;

drivers/gpu/drm/amd/powerplay/inc/hwmgr.h

@@ -696,6 +696,8 @@ enum PP_TABLE_VERSION {
 /**
  * The main hardware manager structure.
  */
+#define Workload_Policy_Max 5
+
 struct pp_hwmgr {
 	void *adev;
 	uint32_t chip_family;
@@ -757,6 +759,9 @@ struct pp_hwmgr {
 	bool od_enabled;
 	uint32_t power_limit;
 	uint32_t default_power_limit;
+	uint32_t workload_mask;
+	uint32_t workload_prority[Workload_Policy_Max];
+	uint32_t workload_setting[Workload_Policy_Max];
 };
 
 struct cgs_irq_src_funcs {